US 11,751,276 B2
Methods for protocol enhancements in 5G NAS
Mahmoud Watfa, Saint Leonard (CA); Behrouz Aghili, Commack, NY (US); Saad Ahmad, Montreal (CA); Xiaoyan Shi, Westmount (CA); and Ulises Olvera-Hernandez, Montreal (CA)
Assigned to INTERDIGITAL PATENT HOLDINGS, INC., Wilmington, DE (US)
Filed by InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Filed on Jul. 12, 2022, as Appl. No. 17/862,521.
Application 17/862,521 is a continuation of application No. 16/961,047, granted, now 11,438,953, previously published as PCT/US2019/012705, filed on Jan. 8, 2019.
Claims priority of provisional application 62/716,516, filed on Aug. 9, 2018.
Claims priority of provisional application 62/653,817, filed on Apr. 6, 2018.
Claims priority of provisional application 62/616,687, filed on Jan. 12, 2018.
Prior Publication US 2022/0346178 A1, Oct. 27, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 4/00 (2018.01); H04W 76/25 (2018.01); H04W 76/19 (2018.01); H04W 76/30 (2018.01); H04W 8/08 (2009.01); H04W 48/16 (2009.01); H04W 60/00 (2009.01)
CPC H04W 76/25 (2018.02) [H04W 8/08 (2013.01); H04W 48/16 (2013.01); H04W 60/005 (2013.01); H04W 76/19 (2018.02); H04W 76/30 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A wireless transmit/receive unit (WTRU) comprising a processor and memory configured to:
receive a first message from a network via a first access technology, the first message comprising an indication for the WTRU to reestablish resources for a protocol data unit (PDU) session, wherein the PDU session is associated with a second access technology and is locally de-activated at the WTRU; and
send a second message via the first access technology, the second message comprising a PDU session status information element (IE) indicating the PDU session is locally deactivated.